OAKLAND — Parking fees at five East Bay BART stations just got more expensive for commuters.

The transit agency on Monday increased the daily parking fee by 50 cents at the West Oakland, Concord, North Concord, Coliseum and Hayward stations. The increase brings the daily parking fees to $3 for each station except at West Oakland, which will see it’s daily fee increase from $8.50 to $9, and Coliseum, where the daily fee will go up from $2 to $2.50.

The monthly reserved fees will also increase on March 1, agency officials said.

BART evaluates parking usage every six months to determine whether there is enough demand for the spaces to warrant a fee increase, or in some cases, a decrease in fees if demand falls. BART uses the fees to pay for the cost of operating the lots, which it estimates will cost $26.6 million in the 2016-2017 fiscal year. The agency expects to generate $33.2 million from its parking fees, the surplus of which is used to improve access, make repairs and complete upgrades at BART stations.

At its annual workshop late last month, BART’s governing board discussed the possibility of increasing the daily parking fees from $3 to $5 at stations, and increasing the number of reserved parking permits. The board also toyed with the idea of generating parking revenue by renting out under-utilized garages on weekend days or decreasing the parking fees on Fridays, when there tends to be a drop in the number of drivers parking at stations.

Erin Baldassari covers transportation. A North Bay native, Baldassari covered local news in the greater Boston area for four years before moving back to the Best Coast. She writes about everything roads, rails, and bridges in the East Bay.